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Blueberry Farming > LCEM (2021) > Flashcards

LCEM (2021) Flashcards

1
Q

The Pierce Tiller ladder consists of tractor drawn___ section aerial ladder.

A

Four

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2
Q

Aerial reach

A
  • 107 feet above ground at 75°

- 100 feet horizontal at 0°

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3
Q

Maximum angle above horizontal

A

77°

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4
Q

What is the tip of the aerial rated at? (Full extension)

A

750 pounds dry
500 pounds wet
The tip consists of the last two rungs.

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5
Q

The aerial has the capability of going ____ below horizontal by adjusting the stabilizers and 15° below horizontal when _____.?

A
  • 5°

- Manipulating stabilizers and the aerial

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6
Q

Overriding the rotation interlock system can lead to what?

A

Tipping of the ladder truck

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7
Q

What restricts ladder movement went system hydraulic pressure is not present?

A

Holding valve cartridges and a rotational brake.

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8
Q

Ladder has a safety factor of___based on the rated load

A

2:1

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9
Q

What is activated when stabilizers are in motion?

A

A stabilizer deployment warning (beeper) on each side.

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10
Q

The turntable is also illuminated by work lights that are activated by the_____?

A

Aerial master switch

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11
Q

If the electronic system has failed in the manual Ariel or stabilizer controls are being used, the EPU switch located at the_____will be the only one active.

A

Manual stabilizer controls

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12
Q

How many emergency stop button’s are located on the ladder?

A

3, one on each side of the ladder and one located at the turntable control console.

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13
Q

Engaging the emergency stop button will cause all functions of the aerial to?

A

Stop immediately.

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14
Q

What happens when the emergency stop button is depressed at any of the three locations on the ladder?

A

A red light will illuminate at each of the lower control stations and a warning will appear in the lower right hand corner of the touchscreen located at the turntable

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15
Q

Where is there an air horn located other than in the cab?

And what can it be used for?

A
  • On the turntable control console.

- Can be used to aid and sounding evacuation signals if necessary

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16
Q

What features are on the turntable control console?

A 
–Rung alignment indicator
–Emergency hydraulic power switch
– Tip tracking light switch
– Ladder illumination switch
– Water flow gauge
– aerial speed switch (high idle switch)
– monitor deploy and stow control switch
– Nozzle deployed/fault indicator
– emergency stop button
– Horn 
– Nozzle controls for up down left or right
– touchscreen
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17
Q

What two things are found on older tiller ladder control consoles?

A

– Hydraulic system pressure gauge – water flow gauge display selector button

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18
Q

The aerial controls required by NF PA to be in the same order on all ladder trucks.
They are as follows:

A

Left side: extend and retract
Middle: right and left
Right side: lower and raise

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19
Q

If the ladder is short jacked the touchscreen will display what warning?

How do you get rid of the warning?

A
  • A red warning triangle In the bottom right hand corner.

- It goes away on its own after you touch the triangle and it explains the warning.

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20
Q

Appears 107 foot ascendant tiller ladder is equipped with__special emergency ladder functions That are only to be used when___or when these functions are being tested by the engineer.

A

4

The apparatus itself is not operating properly

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21
Q

What are the four special emergency ladder functions?

A
  1. Override switch
  2. Emergency hydraulic power switch
  3. aerial/stabilizer emergency power switch, the manual override stabilizer controls, and manual override aerial controls
  4. electrical failure operations: using the manual override stabilizer controls, and manual override aerial controls ONLY.
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22
Q

The aerial/stabilizer emergency power switch is used when___?

A

The apparatus has a total catastrophic failure

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23
Q

What does the aerial/stabilizer emergency power switch activate?

A

The electric back up pump

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24
Q

When using the manual override Ariel controls, The collision avoidance system is

A

Deactivated

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25
Q

When operating older chiller ladders what must the operator ensure before bedding the aerial?

A

The operator must ensure the nozzle is stowed before bedding the aerial.

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26
Q

The emergency pump unit (EPU) is used for special emergency ladder functions to Stowe the aerial in case of?

A

Primary pump failure. (When the main system hydraulic pump is not operating)

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27
Q

The ladder truck has ___batteries. The EPU only uses ___ of these batteries. 

A

6

1

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28
Q

The telescoping waterway is constructed of____tubing and consists of what size tube in each section?

A

-Anodized aluminum

Tubing sizes in each section:
– Base section: 4.5 inch
– lower midsection: 4 inch
– Upper mid section: 3.5 inch 
– Fly section: 3 inch
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29
Q

What is installed to protect the waterway from an excessive pressure range?

A

An adjustable pressure relief valve. (Preset to 250 psi)

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30
Q

The waterway seals are a___design. They will withstand pressures up to___ and temperatures in excess of ____.

A
  • Type B PolyPak
  • 2000psi
  • 250°F
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31
Q

As part of the maintenance schedule, lubricating the exterior of the ladder pipe should be done using a ___of___.

A

Light coat of automatic transmission fluid

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32
Q

Three communication systems on the ladder truck.

A
  1. Intercom (station at turntable console and tip)
  2. Headphones
  3. Beep system
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33
Q

What do the beeps mean when using the audible alarm from the tiller cab?

A

One beep = stop
Two beeps = go
Three beeps = backup

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34
Q

The Tillerman has__places to activate the audible alarm: The floor switch and the switch in the center of the steering wheel.
The engineer driving the tractor only has__button on the dashboard.

A

2

1

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35
Q

The gen PTO switch provides power for the ______.

A

Two cord reels, Tiller Cab A/C, and other functions.

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36
Q

When the tiller steering column is locked (pin en place) in a similar to a ____ _____, in terms of driving.

A

Semi truck.

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37
Q

The steering column lock is used to

A

Transport the ladder long distances

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38
Q

Engines are able to extend a line if needed, the length of the aerial is ____?

A

Finite

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39
Q

First arriving ladder on scene of a structure fire should position the ladder with the following in mind:

A 
· aerial placement
· intended use
· expected progression of the fire
· width needed for Jack deployment
· overhead wires
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40
Q

Sparring the ladder truck near a corner permits the ladder company to place the turntable in a position to___?

A

Reach two sides of the structure

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41
Q

The most advantageous location for spotting the ladder truck will be determined by the _____ and where the aerial will____?

A

· Situation

· have the greatest impact on the fire scene.

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42
Q

How can you help gain a greater amount of aerial clearance to lower floors? (tiller ladders)

A

Angle the tractor and Tiller cab away from the involved structure.

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43
Q

For the _____, angling the cab away from the involved structure will allow for a greater amount of aerial clearance.

A

Tower Ladder

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44
Q

For the straight stick (rear mount) ladder, _____ provides the greatest amount of aerial clearance.

A

Backing into the structure

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45
Q

-Reasons an aerial may need to be raised.

(Aerial does not have to be raised at every fire)

A 
· ladder pipe operations
· elevated rescue
· elevated ventilation
· egress for interior crews
· gain access to upper levels
· used as an exterior standpipe
· special rescue situation
· overhead scene lighting
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46
Q

The expected progression of the fire is determined by many variables including:

A

Wind, building construction, size of the fire, size of the structure, and exposures.

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47
Q

When must you weigh the variables of expected progression of the fire?

A

At the time of arrival

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48
Q

Fully extended stabilizers go out approximately__from the side of the ladder.

A

5 feet

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49
Q

Jack placement considerations (4):

A

· avoid manhole covers and storm drains
· concrete is better than asphalt
· undisturbed earth (not sand)
· avoid underground parking facilities

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50
Q

Power line considerations for aerial (3):

A

· maintain at least 20 foot clearance from powerlines and 50 foot clearance from high-voltage powerlines.

· high voltage powerlines can art to the aerial

· do not run the aerial between wires

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51
Q

It is critical that you leave the apparatus after it has contacted a powerline____.

A
  • Jump landing with both feet together.

* Allow no part of your body to touch the apparatus and the ground at the same time.

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52
Q

Scrub area:

A

The area that can be reached by the aerial

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53
Q

Factors affecting scrub area:

A

Type of ladder truck, setback from the building, obstructions, spotting of the ladder and or other apparatus, etc.

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54
Q

If the scrub area is going to be the upper floors of a structure consider____the setback from the ladder to the structure.

A

Shortening

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55
Q

Setback:

A

Setback is the distance from the working side of the ladder truck to the building

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56
Q

The tiller ladder with Ariel fully retracted needs a minimum setback of___ from the side of the ladder truck to the tip of the aerial.

A

30 feet (roughly 15 paces)

*This distance is with the aerial position at a 90° angle to the ladder truck and with 0° elevation.

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57
Q

Can you manually slide the waterway from rescue mode to fire mode?

A
  • If the aerial is elevated and extended you will not be able to.

– If a blitz attack is going to be performed and the aerial is lowered into this position the waterway can be manually slid into fire mode from rescue mode if necessary.

58
Q

When supplying a ladder pipe within 100 feet, the recommended initial PDP is___(any nozzle).

A

150 PSI

*proper flow adjustments can be made by communicating with the ladder company engineer.

59
Q

If the nozzle is going to be controlled from the tip of the aerial during a blitz attack, the firefighter must do so while _______ and not______.

A

•  standing on the ground and not on the tip.

*Placing a fire fighter on the tip will overload the aerial.

60
Q

On older ladder trucks….what must first be attached to the stream shaper and then the nozzle in order to create a blitz attack?

A

A 30° elbow

61
Q

Aerial Akron automatic fog nozzle:

A
  • GPM 500 - 2000
  • Ladder pipe limited to 1000 GPM, with tower ladders being the only exception.
  • The nozzle is equipped with manual controls for up/down and left/right
62
Q

 The total Tiller ladder stabilizer spread is ____ via one set of ___- style stabilizers. 

A

·17’

· H-style

63
Q

Depend inserted into the jack when it is set to the desired height is a safety feature used to _____.

A

Prevent the vertical jack from retracting in case of system failure.

64
Q

When shortjacking the stabilizers must be ____ on the side of the ladder where the area is going to be operating.

A

Fully extended.

65
Q

The only way for the aerial to move to the short jacked side is to use the…?

A

Aerial override controls.

66
Q

Ground pads should be used….

A

At all times.

67
Q

Using cribbing to level the surface you are jacking from (5 points):

A

· Level the stack on the first layers so the Jack foot sits on a level surface.
· always use the apparatus ground pads as the top layer
· Cribbing should cover at least as much area as the ground pads
· frequently inspect cribbing during operation for settling, slippage, cracking, bending, crushing or shear failure.
· cribbing should never be taller than twice the width of the cribbing base.

68
Q

Ladder truck must be leveled within the limits shown in…

A

The Pierce manual

  • in these conditions, the apparatus angle indicators will be within the green range.
69
Q

If you must operate with the grade or slope apparatus angle indicators outside of the green range, but still within the yellow range, then the device can be operated at___capacity.

A

50%

70
Q

Jackknife angle warning light colors and degree angle range:

A

· Green: 0° – 30°
· Amber: 30° – 60°
· Red: >60°

71
Q

When the ladders Aerial master switch is engaged, the jackknife warning light ____.

A
  • Turns off.

* For this reason, do not ride around with the aerial master switch engaged.

72
Q

Fly section steps are located at__locations on the aerial; at the top of the _____ section, and at the top of the _____ section.

A

· Two locations:
– Top of the 3rd (upper mid) section
– Top of the 4th (fly) section


73
Q

A ____ should always be used when working from the tip of the aerial.

A

Ladder belt

74
Q

When should the high idle switch the placed on “normal” rather than “fast”?

A

When approaching structures and while firefighters are on the aerial. 

75
Q

When placing an aerial to the roof, how many rungs above the roof line should it be placed?

A

3 to 5 rungs (More if possible) and turn on scene lights. 

76
Q

If only one beam of the aerial touches the roofline, this can place a_____ _____onto the aerial causing damage.

A

Torsional load

*It can also cause the aerial to slide along the roofline.

77
Q

When placing the aerial to a window for access, place it at the _____ or just below it.

A

Window sill

*Allows for easier access and egress by keeping the window clear.

78
Q

To rescue victims with the aerial….

A

Raise the aerial above the victim, then slowly lower it to them.

*Bringing the aerial in from the low to rescue a victim could cause the victim to jump onto the aerial, potentially shock loading it. 

79
Q

Rescuer should assist able bodies individuals down the aerial by staying __ rung below them.

A

1

*Small children should be carried down the aerial

80
Q

Can you ventilate a window with the tip of the aerial?

A

Yes, in extreme circumstances for victim rescue. This method should be a last resort.

81
Q

Create an exterior standpipe with the aerial:

A

Place the aerial and fire fighting mode, raise the aerial to the desired location, attach the hose to the end of the smoothbore nozzle attached to the ladder pipe.

*This will not work with the automatic fog nozzle connected.

82
Q

If there is not an immediate need to rescue a victim via a ground ladder, the 1st ground ladder should be placed on the__ side.

A

C side.

*continue to place ground ladders around the structure as needed.

83
Q

All roof and extension ladders are rated at ____.

A

750lbs

84
Q

If ground ladders are exposed to heat greater than ____, the heat indicators will turn ____ and the ladders should be _____.

A

300°F

Black

Taken out of service.

85
Q

10’ Folding / Attic Ladder weight limit:

A

300lbs

86
Q

A ground ladder being placed for roof access should _______. This makes it easier for crews working on the roof to see the ladder and allow the crews to get on and off the ladder with ease.

A

Extend 3 to 5 rungs above the roof line.

87
Q

Ladders carried by ladder companies and their weight specifications:

A

(1) – 14’ roof ladder: 750 lbs

    ·Combination Ladder: 300 lbs
      (Little Giant) 17’ Max Height

     · VES Ladder: Approx. 7’ 
      (Weight limit not tested.)

(2) – 10’ attic ladders: 300 lbs

(2) – 16’ roof ladders: 750lbs

   20’ roof ladders: 750 lbs

   28’ extension ladders: 750 lbs
       · 16’ bedded

   35’ extension ladders: 750 lbs
       · 20’ bedded
88
Q

Normal complement of power saws carried by JFRD ladders:

A

(2) Chainsaws
(2) Rescue Saws
(1) Reciprocating Saw

89
Q

Husqvarna K970 / Rescue saw (K12)

A

– Max depth of cut: 5 inches 
– Max blade diameter: 14 inches
– Fuel: mixed gas (50:1 ratio)
– Adjustable blade guard

90
Q

Where is the decompression valve found on newer and older Rescue saws? 

A

On top of newer saws and on the side of older saws. 

91
Q

Rescue saw blades carried by ladder companies:

A

· D-Ax: light gauge metal, wood, roofing.
· Diamond blade: Concrete, masonry, metal, plastic, wood, rebar, copper, glass block, windshields, auto parts, tile, aluminum, stainless steel, corrugated roofs and “everything else”.

92
Q

Diamond blades can become dull when the wrong feeding pressure is used or….
Sharpen the blade by cutting in a soft material such as…

A

– When cutting certain materials such as heavily reinforced concrete.
– Sandstone or brick

93
Q

When DRY cutting with a diamond blade, lift the blade out from the cut every___and let it rotate in the air for__seconds to let it cool.

A

– 30 to 60 seconds…
– 10 seconds…

*Diamond blades for dry cutting can be used both with and without water cooling. 

94
Q

Diamond blades for wet cutting must be….

Water cools the blade and increases its service life while also reducing the…

A

– Water cooled

– Formation of dust

95
Q
  1. Ladders normally carry __ chainsaws and engines carry __.
  2. The saws carried by the ladders will normally be ______and have a ______.
A
  1. Ladders (2), Engines (1)

2. More powerful, longer bar.

96
Q

DeWalt reciprocating saw:

A

20 V battery operated with interchangeable blades

97
Q

When the hose roller is used in conjunction with hose it should be placed…

Used to conjunction with rope it should be attached…

A
  • Hose: placed on the last rung of the aerial to protect hose from abrasion.
  • Rope: should be attached a minimum of one rung from the last.
    • By doing this the rope is captured between two rungs of the aerial*
98
Q

Lyfe pulley: (Carried by some ladders)

A
  • Can be used in Lou of the hose roller for rope operations.
  • The capacity of the lyfe pulley system is 500 pounds or the remaining tip load, whichever is lower.
    
99
Q

Latter trucks carry pipe poles ranging in size from ______ to reach taller ceilings.

A

8’ to 16’

100
Q

Hydra ram specifications:

A
  • Weight: 12 pounds
  • Maximum thrust opening: 4 inches
  • Designed to be used by (1) firefighter to force inward swinging doors.
101
Q

JFRD carries___different types of ventilation fans. They are…

A

3 types:

  • Gas powered
  • Electric A/C
  • Electric and battery operated (A/C & D/C)
102
Q

CFM is measured when the fan is

A

At full power

103
Q

ALL JFRD‘s fans can be used for_____or______.

A

Positive pressure ventilation (PPV)
OR
Negative pressure ventilation (NPV)

104
Q

A way to estimate if the Come of air is being properly placed into the opening is by…

A

Standing between the fan and the opening. 

105
Q

When using positive pressure ventilation, The ____ opening should be smaller than the____opening.

A

Exit should be smaller than the entry 

Only attempt to clear 1– 2 rooms at a time using PPV. Once the room is clear, close the door and then move onto the next room avoiding recirculation. 

106
Q

Adding additional fans during the PPV operation is referred to as_____.

A

Super charging

107
Q

24 inch Supervac gas fan

A
  • Approximately 21,000 CFM
  • Setback: 6 feet
  • Newer models have a removable 10 foot exhaust extension with heat shield.
108
Q

18 inch RamFan

A
  • Approximately 10,000 CFM
  • set back: 14 feet
  • Electric or battery operated (AC or DC) (2) 40 Volt Batteries
  • runtime of approximately 20 minutes on battery power
  • In DC operation this fan must first “Wake up“ causing a slight delay.
109
Q

18 inch tempest electric fan

A

– Electric (AC only)
– approximately 12,000 CFM
– setback: 8 feet

110
Q

Hurst Edraulic tools:

A

- Spreaders:
· 28 inch spreading distance

  • Cutters:
    · 8 inch cutter opening
  • Ram:
    · 53 inches fully extended



111
Q

Hurst strong-arm:

A
  • Features interchangeable tips: Combination “Spreader and Cutters” and Door Tips.
  • approximately 8.5” spread with combination tip.
  • approximately 7 inch spread with the door opener tip.
  • designed to work in heat and smoke environments
  • Will cut up to 3/8” rebar, 2 x 4 wood, and grade 43 chain. 
  • The other Hurst hydraulic tools can utilize a 43 foot AC/DC inverter whereas the strong arm cannot.
112
Q

Is the Hurst strong-arm battery compatible with the rest of the Hurst Edraulic tools?

A

No.

113
Q

Applying a __________and or _______ the cutters can lead to blade failure.
(Hurst)

A

Tortional load and or tip loading

114
Q

The purpose of a Bunky brace is for

A

Basic stabilization

115
Q

Rescue 42 Telecrib Junior

A

– Working load: 5000 pounds
– Length: 41”collapsed,
69” extended
– Weight: 30 pounds

116
Q

The adz tool is used for passive forcible entry or through the lock. Specifically, the ____.

A

Rim lock

117
Q

The two tools used for passive forceable entry or through the lock, specifically the rim lock.

A

Adz tool, K tool

118
Q

Recommended generator operations should stay within___ of the rated capacity (2880 Watts)

A

80%

119
Q

If the demand is beyond generator capacity, turn off______.

A

Tiller cab AC

120
Q

The purge valve on the mask found in the RIT bag can be used in two ways. What are they?

A

· clear the mask of smoke after donning it on the victim

· if the downed fire fighter is unable to breathe deeply enough to engage the second stage regulator, pressing the purge valve will give them air.

121
Q

Old style RIT rope

A
  • 130’ to 140’ long
  • Metal rings tied to the road every 20’
  • After every ring, there are knots denoting distance into the structure. 10’ increments
  • One in two out knots
122
Q

New style RIT rope

A

– 220’
– Ring every 10’
– There are 2 knots before the ring and 1 knot after the ring, keeping 1 in 2 out. 

123
Q

Extrication equipment carried by ladders

A

Change, highlift jack, cribbing, J hooks, come alongs. 

124
Q

Barnes portable submersible pump:

AKA “sump pump”

A

– .33 hp, 120 V
– No on/off switch
– 20 foot power cord with 19 foot wire cord protection.
– At a depth of 19 feet, it can pump approximately 50 GPM
– Used for dewatering
– Fitted with a 1.5” male thread to attach hose

125
Q

 The drop-down nozzle is a___nozzle attached to a____ long section of 2 1/2 inch hose. 

A

Distributor

26’

126
Q

At 150 psi, the drop-down nozzle will provide___GPM and will cover a___diameter.

A

550 GPM

36’ Diameter

127
Q

The attic nozzle is ideal for fires caused by…

A

Lightning strikes

128
Q

Ladders carry ladder belts and class___harnesses that encompass the full body.

A

3

129
Q

Scene light adjustable tripods extend up to _____’ tall with light

A

12’

130
Q

Two air chisels normally found on JFRD ladder trucks are the___air chisel and the___air chisel.

A
  • Top Gun: 90-200 psi

- Streeper: 300 psi

131
Q

The airbag pop out safety zone is…

A

45° from the most likely direction of travel

132
Q

The air controller is equipped with a pop off valve that will activate at ____ psi. 

A

145

133
Q

The most commonly used elevator key is _____ followed by the _____.

A

Drop key

Half moon

134
Q

The elevator control key (phase 1, phase 2) is normally inserted_____near or inside the______and then again_______.

A

On the main floor near or inside the elevator lobby

Inside whichever elevator car is to be used

135
Q

Victims who are over come by smoke trying to escape are often found near…?

A

Exterior doors

136
Q

 Tasks that may need to be completed but NOT communicated over the radio:

A

– Pl. an attic ladder near the front door
– place a fan near the structure
– Start the fan (when told to do so)

137
Q

Some water keys have a brass chain on the end….what is it used for?

A

To ground the tool and protect against electrical shock

138
Q

Water main valves will normally be found….

This is because they will be located…

A

Near or in the street

Directly on top of the water main

139
Q

Basic parts of a single phase electrical service:

A
  1. Electrical drop
  2. Weather head
  3. Conduit bringing power from the weatherhead to the meter
  4. Meter
  5. Main breaker
  6. Electrical panel

*All six parts may or may not be present on scene

140
Q

If a three phase drop must be cut, contact ____.

A

JEA

141
Q

The electrical hazards associated with solar panels are going to be related to

A

DC power

Blueberry Farming (2 decks)

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